This time, no fan characters (Well, only Asylus, 's Dante Koopa, 's General Karnage, 's Princess Marina and Celine will be feature there), only Mario & Kirby characters, example anime and game characters like Tiff and Tuff.

The main villains are Antasma from ML - Dream Team and Emperor Nightmare!

Antasma sprite by

The storyline is about, Antasma was given rebirth by Emperor Nightmare and gives him new powers of evil, darkness and nightmare to infect everybody in Dreamland and Mushroom Kingdom of fear.

In the result, Mario and Kirby must find the Five Galaxia Stars and the Omega Star to defeat Antasma and Emperor Nightmare, not if Bowser collects them all first...